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The human body produces and destroys 15 million blood cells every second.

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Human stomach acid is strong enough to dissolve small pieces of metal such as razor blades or staples.

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There are more nerve cells in one human brain than there are stars in the Milky Way.

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The heart is located in the center of the chest, with part of it tipped slightly so that it taps against the left side of the chest.

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Green tea is able to stop the scent of garlic or onion from causing bad breath.

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